Fountain drafting-pen.



E. `R. SMITH. FOUNTAIN DBAFTING PEN. nrLxoATxolr rum: un 21, laos.

Patented July 2'?,` 1909.

`order to provide a handle havin EDWIN RUTHVEN SMITH, Ol." PARIS, TEXAS.

FOUNTAIN DRAFTING-PEN.

Specification oi' Letters Patent.

Patented July 27, 1909.

Application tiled May 27, 190B. Serial No. 435,362.

To o!! inkom it may concern.'

le it known that i, limvix lte'rnvnx h'nrru, a citizen ol the United States, residingat laris. in the county o'l'I Lamar and State ol Texas, have invented a new and usctul ["ounlain Drafting-Pen, of which the following is a specification. y

'l`his invention relates to fountain drafting' pens.

The object o'l the invention is tn provide a novel and thoroughly efficient article of this character in which, by the peculiar ar rangement and assemblage of the parts thereof, the flexingr of the handle will operate either to supply ink, in requisite qnantities. to the pen points, or to draw ink into the handle which constitutes a reservoir.

With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists, genorally stated, in a fountain drafting pen embodying a handle or reservoir that is adapted to be flexcd through an arc sufficient' to expel practically all of the contained air therein, whereby when released, n suction will be'created which may be utilized for filling the handle with ink. In

aiteristic, it is necessary that V1t, shall be capable ot' resumingr and maintaining nor lnally a straight line, and of possessing Sullicien't. rigidity to permit, of its being used for draftirngr purposes without too ready yielding. To accomplish `this result the handle will be made of a length ot' rubber, snch as is connnonly employed for syringe tubes, and assembled with the handle is a reinforcing member embodying-a pair of collars through which the terminals of the handle project, and a plurality of ribs or bars connecting' the collars, and being of v resilient material whereby to permit the bending or llcxine' ot' the handle above rnl'errcd to. As a matter ol .l'urther and spm-lic improvement the handle will be approximately ovoidal in crossy section with prgwticaliv llai sidi-s, and tlicsc sides will be provided with channels or L'roovcs to receive llnl 'reinforcingf members.

'l`lio pcn may bo constructed in any prol'i-rrcd manner and is provided at one end with a sleeve lo lit within the larger end ot' the handle and be held inplaee therein by l'rictional contact with the walls fof the rubber tube. The sleeve is provided lwith a central orifice 1n which is disposedthe inner this cllarhandle is outwardly llal'ed cud ot thc inh feed, tlu` outer end of which is provided with a lonn'itndinal slit to per mit the escape ol" the nil( and also the draw- .ingl of the same into the handle or reservoir. The inl; leed is by preference made ol.- ruhber, although it4 may be made of any other Suitable material, and is held within the orilice ol.' the sleeve by lrictional engz'igement with the walls thereof.

The invention consists lnr'lhcr in the vari ons novel details ot construction of a fountain drafting' pen as will be hereinafter inll)Y described and claimed.

ln the accompanying drawings forming a partol this specitication and in which like `characters of rcl'erence indicate correspond ing partss-l"igure l is a view in vertical longitudinal section through a fountain drafting pen constructed in accordance with the present invention. Fig. L) is a view in side eleration talien at right angles to li`ig. l, with the pen detached from the handle. Fig. Il is a transverse sectional. View taken on the line 22e-3 ot' Fig. 2 and looking in the direcA tion of the arrow thereon.

The handle l is constructed of a length of rubber tubing1 preferably o'l the type cmployed-in syringe tubes, and is made in the torni ot an Aordinary tapered pen holder, closed at the smaller end. As shown in Fig. 3, the handle is approximately ovoidal in cross section and is provided with [lati sides` and in these sides are arranged longitudinal grooves *.3 that are engaged by reinforcing members 3S in the nature ol llnt'. strips olI resilient metal, the terminals ot' which are sccured to or formed integral with sleeves -land 5 that are designed to tit snugly upon thiI parts olthe handle withiwhich they co act'u In order to prevent the sleeve 4 from becoming detached from the handle from any cause, the larger or open end ol the around the end of ilu sleeve l, as shown at 5 in Fig. 1, and thereby secures the object sought. i

'lhe pen ti may be of the usual or any preferred,consti-lation and is provided with a collar or tubular extension 7 that is.lle-

signed to lit snugly within the larger end of the handlcand to beheld therein in the present instance by irict'ional contact with the walls ot' the bore ot' the handle, thus to facilitate its easy rcmoval when il is desired to rlean tlnI pcn, or the handle, or for any other purpose.

The collar 7 is provided with a central bore 8 that is designed to receive and hold the inner end of the ink feed 9, which .latter is preferably constructed of' a length of rubber tubing, and is somewhat more rigid than the handle, and the outer end of which is reduced and provided with a longitudinal slit l0 through which. the ink will pass to the pen points or be drawn into the handle, 1n order to permit the feed to pass by the adjusting screw 1l., the former will be provided at the point where it would otherwise contact With the screw with a laterally curved hump or deflection l2, as clearly ,i

shown in Fig. l.

The object of having the handle of the contour in cross section described is toxfacilitate its flexing; but as will be apparent it may be circular in cross section and still secure the objects sought.

ln the use of the pen, when the handle thereof is to be filled with ink, the handle is flexed laterally a sufficient degree to expel the air contained therein, and the pen points A will be immersed in an inlreceptacle a Sullicient distance to insure the covering of the end of the ink feed for some distance say up as far as the adjusting screw. When the handle 1s allowed to assume a straight line, a suction will beqexerted which will operate to draw into the handle a quantity of inl; sufficient to last for an extended period. To supply ink to the pen point, it will only he necessaryslightly to flex the handle and by observing the quantity dischareed o'verfeeding will be prevented. Aswi l be obvious, when the handle is flexed it will be flattened on lines parallel with the reinforcing members 3, and this flattening will in a. readily understood manner operate to cause the air contained Within the handle to be expelled.

In addition to its function lof erniitting the passage of ink to and from t e handle, the slitted end of the feed tube also operates as a seal or valve to exclude the entrance of air to the handle or reservoir,tl1'us to pre.- vent calring or drying with the ink therein. lt is intended that this tube shall be of rubber havingr a flexibility that will permit the outer end to open and close :iutomatieallzyv upon the manipulation of the handle.

lt will be seen from the foregoing description that While the improvements herein-deg lined are simple in character they will be thoroughly efficient for the purposes designed and nill coact in the production of an t efficient, durable and highly useful article for dra'ltsnicns use.

hat is claimed is l. .is a new article of manufacture, a pen handle constructed of flexible material, nonllexihle sleeves arranged at the terminals of the handle, .laterally flexible longitudinal reinforcing members secured to the' sleeves and being oppositely disposed to permit flexing' of the handle.

2. As a new article of manufacture, a pen handle constructed of flexible material provided in its outer side with longitudinal grooves, laterally flexible reinforcing menii hers fixed relative to each other and arranged in the grooves and being o positely disposed to permit of the handige being flexed, and non-flexible sleeves disposed at the terminals `of the handle, and to which the reinforcingmembers are attached.

3. An implement comprising a flexible elastic handle having one end open and the other end closed, non-flexible sleeves mounted upon the terminals of the handle, a pen haring a collar inscrtible into the open end of the handle to bind said open end against the inner surface of one of the sleeves, and laterally flexible longitudinal reinforcing means connecting the sleeves and normally bearing against. the handle, said means being fixed relative to each other.

l. As a new article of manufacture, a pen handle consisting of flexible material and provided with a laterally flexible lonvitudi- 'ng u on the flexible ma'- nal' reinforce bcarl terial, and non-flexibe handle-en-aglrl fixe members secured to the reinforce an relative thereto.

In testimony that l claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

EDWINA RUTHVEN SMITH.

Witnesses:

lA. FENDER,

R. W. WORTHAM. 

